Apparatus for truing ports of automatic connectors for train-pipes.



I. BEAHM.

APPARATUS FOR TRUING PORTS OF AUTOMATIC CONNECTORS FOR TRAIN PIPES.

APPLICATION FILED JAN. 5, 1911.

1,007,632, Patented Oct. 31, 1911.

6 SHEETS-SHEET 1.

' [NVENTOR A P. BEAHM. APPARATUS FOR TRUING PORTS OF AUTOMATICCONNECTORS FOR TRAIN PIPES.

APPLICATION FILED JANQB, 1911.

' Patented Oct. 31, 1911.

5 SHEETSSHEBT 2.

aiw/ P. BEAHM. APPARATUS FOR TRUING PORTS 0F AUTOMATIC CONNECTORS FOB.TRAIN PIPES.

. APPLICATION FILED JAN.5, 1911.

1,007,632, Patented 0011.31, 1911.

6 BHEETS-SHEET 3.

P. BEAHM. APPARATUS FOR TRUING PORTS 0F AUTOMATIG CONNECTORS FOR TRAINPIPES.

APPLICATION FILED JAN. 5, 1911.

1,007,632. Patented 001. 31, 1911.

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W /T L V WITNESSES [NVENTOR P. BEAHM. APPARATUS FOR TRUING PORTS 0FAUTOMATIC GONNBGTORS FOR TRAIN PIPES.

APPLICATION FILED JAN. 5, 1911.

Patented Oct. 31, 1911.

UNITED STATES PATENT OFFICE.

PETER BEAHM, OF ALTOONA, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD T0 CHARLESA. BUCH AND ONE-THIRD TO JAMES P. FORSYTH, BOTH OF WAYNE, PENNSYL-VANIA.

APPARATUS FOR TRUING PORTS OF AUTOMATIC CONNECTORS FOR TRAIN-PIPES.

'1' '0 (NZ whom at may concern Be it known that I, PETER BEAHM, acitizen of the United States, residing in Altoona, in the county ofBlair and State of Pennsylvania, have invented certain new and usefulImprovements in Apparatus for Truing the Ports of Automatic Connectorsfor Train-Pipes, of which the following is a specification.

My present invention relates to apparatus for truing the ports ofautomatic train pipe connectors of the kind shown in my Patent No.956,408 of April 26, 1910, in which an automatic train pipe connector isshown comprising connector heads, having ports for the train pipes, suchas the air brake pipes, air signal pipes, and the steam heating pipes.Each connector head, as shown in said patent, is supported from the carcoupler, and the arrangement is such that when two cars come togetherand are coupled, the connectors join each other with the ports of thetrain pipes on one car registering with the ports of the train pipes onthe adjacent car. The ports are made smooth and even, so that when theports on one car come in contact with the ports on the other car withwhich it is coupled, tight non-leaking joints are made which aremaintained by springs carried by the connector heads. It is of vitalimportance that the abutting faces of the ports shall be smooth, evenand true, otherwise a non-leaking joint cannot be made.

The object of my invention is to provide an apparatus whereby the portsmay be trued as by milling and grinding in such manner that in usenon-leaking joints are automatically made when two cars come together.

By reference to my patent before mentioned, it will be observed thateach connector head has a plurality of ports, preferably three, one forthe air brake pipes, one for the air signal pipes and one for the steamheating pipes, and therefore I have devised an apparatus which can beapplied to a connector head in such manner as to properly true aplurality of ports.

In carrying out my invention, I provide a main supporting frame,provided with means for adjusting it on, and securing it to, a trainpipe connector. This frame supports a tool-holder, preferably comprisingthree sleeves rigidly connected and adjust" Specification of LettersPatent.

Application filed. January 5, 1911.

Patented Oct. 31, 1911.

Serial No. 601,028.

ably secured to the supporting frame. The tool-holder is adapted toreceive tools for milling and grinding the ports, said tools beingdetachab-ly connected with the toolholder so as to be readily placed inposition to act upon the several ports in succession. Each toolpreferably comprises a sleeve provided with devices for detachablyconnecting it with the tool-holder and a spindle rotatably mounted inthe sleeve and carrying the truing tool. At its outer end the spindle isformed with a collar between which and the outer end of the tool sleeveis arranged an annular series of balls providing a ball hearing. Thespindle has a limited endwise movement in the sleeve, the arrangementbeing such that when the collar on the spindle presses against the ballsfurther inward movement of the spindle is arrested and the truingoperation is stopped.

Other features of my invention will be hereinafter described.

In the accompanying drawings :Figure 1 shows a side elevation of myimproved port truing apparatus applied to a train pipe connector. Fig. 2shows a vertical section on the line 22 of Fig. 9. Fig. 3 shows ahorizontal section on the line 3-3 of Fig. 9. Fig. 4 shows alongitudinal section of a tool which may be employed for grinding theports. Figs. 5 and 6 are detail views of the working end of a grindingtool. Figs. 7 and 8 are detail views of the working end of a millingtool. Fig. 9 shows an end elevation of the apparatus. Fig. 10 is aperspective view of the supporting frame of the truing apparatus. Fig.11 is a perspective view of the tool-holder separated from thesupporting frame. Fig. 12 is a perspective view, with parts broken away,of one of the tools employed.

I have shown my improved port truing apparatus applied to one member ofa train pipe connector of the kind shown in my Patent, No. 956,468 abovereferred to. Such connector member, it will be understood, comprises ahead A having suitable passages a terminating at their outer ends insuitable ports. These ports are preferably provided with rings B, B B ofrelatively soft metal when the rings of the two members come togethernon-leaking joints are made.

It is essential not only that the ports shall be smooth and even, but itis also essential that the outer surfaces thereof shall be in truealinement in order that a plurality of ports in each member may be madeto register with a plurality of ports in the coupled member, and myimproved apparatus is designed to true the individual ports by millingand grinding in such manner that when this operation is completed allthe ports will be in proper condition to connect with si1nilar ports ona coupled car. Each connector head shown in my patent before mentionedis provided with a guide funnel C and a guide pin 1), the pin of onemember of the connector being adapted to enter the funnel. of the othermember and to bring the two members properly together to cause the portsto register, and the supporting frame of my truing apparatus is adaptedto be secured to the funnel and pin in the manner most clearly indicatedin Fig. 3. In this way the supporting frame may be held in place and mayhave its position partially adjusted but other adjustments are requiredas will be hereinafter described.

The supporting frame E is preferably made of a single casting havingthree rings, 6, e 6 arranged in a vertical series and rigidly connectedor cast together. From the middle ring 6 project in diametricallyopposite directions arms E, E to the former of which is secured a pin Fhaving a split end f and a threaded socket f adapted to receive atapered screw F. The pin F is adapted to enter the funnel C and passthrough the opening 0 therein and when thus arranged the pin may betightly locked in the funnel by the screw F. The arm E carries a sleeveH to which is secured a split clamp I provided with tightening screws2'. The pin D enters the clamp and may be securely fastened thereto bythe screws 2'. In this way the frame may be securely fastened to thefunnel and the pin. A long screw Gr extends through the sleeve H and isadapted to abut against the front of the connector head, in the mannerindicated in Fig. 3. By adjusting this screw the frame E may be made toextend closer to or farther from the connector ports. In order, however,to obtain the accurate adjustment necessary, I provide adjusting screwsJ which are carried by arms E extending from the upper and lower rings6, e of the supporting frame E. These screws J are tapered at theirinner ends and these tapered por tions are adapted to abut against theupper and lower front edges of the connector head, as shown in Fig. 2.By properly adjusting the screws J and the screw G, the position of theframe E relatively to the connector head may be determined and when thisis done the pins D and F may be fastened by the devices heretoforedescribed and the arms E may be fastened to the connector head by meansof the set screws E*. In this way the supporting frame E may be properlyadjusted to a connector head and when the screws G and J are given theproper adjustment the frame E may be removed from one connector head andplaced on another connector head without further adjustment, the screwsJ and G determining the position of the head for any number of connectorheads and when the supporting frame is thus applied to a connector headand its position thus determined the fastening devices may be operatedto securely lock the supporting frame in place.

The tool-holder M comprises three sleeves m, m m rigidly connectedtogether by webs m These sleeves and the webs may be all made in asingle casting, and the sleeves are adapted to enter the rings of thesupporting frame E and to be adjusted therein and to obtain the properadjustment the ring 6 is provided with set screws N which are adapted toengage the sleeve m When the proper adjustment is attained the sleevesare locked to the supporting frame E by means of bolts 0 engagingsockets 'p in lugs P extending from the rings a, e. The sleeves m and mmay be locked in place by means of screws R on the rings 6, 6 A verynice and exact adjustment of the tool-holder in the supporting frame maybe obtained by these devices and when the tool-holder is thus adjustedfor one connector and it is found that all the ports are properly truedno further adjustment is required and the apparatus may be transferredfrom one connector head to another in rapid succession so that all ofthe connector heads acted upon by the apparatus will have their portstrued in precisely the same way and to the same extent. I

For truing the ports, I preferably employ a milling tool and a grindingtool. The head or working end of the milling tool is preferably of thekind shown in Figs. 7 and 8. This head S may be of any suitableconstruction and it is adapted to be removably secured by a pin orotherwise, to the end of a spindle T which is also adapted to receivethe head S of a grinding t0ol,which head S (Figs. 5 and 6) may be formedwith recesses 8 into which the grinding compound may enter in theprocess of grinding or which may be filled with grinding material in theordinary manner. The spindle T extends through a sleeve T and preferanannular collar 25 and the Spindle T is provided with an annular collart. The collars t and t are formed with annular grooves which registerwith each other and provide a race-way for an annular series of balls tforming a. ball bearing for the spindle.

The tool shown in Fig. 12 is adapted to be detachably connected with thetool-holder shown in Fig. 11. This can be more conveniently done byproviding the sleeve T with a laterally projecting pin 25 adapted toengage an angular slot m in each of the sleeves m, m m thus providing a.bayonet joint. This joint is such as will determine 15 the inwardmovement of the tool in the holder and to prevent rotation of the sleeveT beyond a very limited extent. \Vhen the tool is insert-ed in one ofthe sleeves m, m

or 122?, an annular shoulder t on the flange t abuts against the outerend of the sleeve,

m, m or m and thus limits the inward movement of the tool sleeve T. Thespindle T extends through the head S or S and projects beyond theworking face thereof and when the tool is positioned for work theprojecting end 2 of the spindle extends into one of the rings B, B or Bat one of the ports. hen thus arranged the tool is ready for operationand may be rotated by means of the connections WV of any desired kind.

hen the operation is commenced, the collars If, t are slightly separatedand the mill ing or grinding operation may proceed until the inwardmovement of the spindle is arrested by the collars t, t coming closer together and binding the balls. In this way the three ports may be milledby the same tool which may be easily transferred from one sleeve to theother and then the milling tool S may be removed from the spindle and agrinding tool S substituted, or separate complete tools for milling andgrinding may be employed.

By reason of the very fine adjustment obtained the several ports may bemade perfectly true and even. When the first set of ports is trued andthe proper adjustment obtained in the manner before described theapparatus may be used to true the ports of a large number of connectorsin succession using the same adjustment for all of them, so that thesame amount of milling and grinding may be produced on all of theconnector ports and thus the truing is standardized and each set ofports thus trued will be made to register with any other set of portswith which it comes in contact.

I may employ the same tool for grinding. the ports as that for millingthem with the exception that the grinding head S is substituted for themilling head S, but I preferably use a grinding tool of the kindillustrated in Fig. 4. In this construction the spindle T is similar tothat before described 65 and is surrounded by a bushing V provided atits outer end with laterally projecting arms V, four being shown in thedrawings (see Fig. 9). The sleeve V surrounding the bushing is alsoprovided with laterally projecting arms V V (Fig. 2) four being shown. 7Threaded spindles X extend through two of the arms V and through thearms V and carry adjusting nuts X. Between the arms V, V are interposedsprings V, surrounding the threaded spindles. Set screws X extendthrough the arms V and bear against the opposing arms V The spindle T isformed on its outer end with a collar t similar to that shown in Fig. 12and the ball hearing at t is also similar to that shown in Fig. 12. Theinner faces of the arms V bear against the outer face of thetool-holder, in the manner indicated in Fig. 2. This tool is suitablefor grinding the faces of the ports but is not used for milling them. Byadjusting the set screws X the position of the spindle in the sleeve Vmay be adjusted and the inner movement of the grinding tool regulated.By adjusting the nuts X the tension of the springs may be controlled.These springs tend to hold the grinding tool away from the ports but thegrinding tool may be moved toward the ports when endwise pressure isapplied to the spindle T, this inward movement, however, being regulatedby the position of the screws X I claim as my invention:

1. The combination with a train-pipe connector having a guide funnel anda guide pin, and a plurality of ports, of a porttruing apparatuscomprising a supporting frame, means for connecting this frame with theguide funnel and the guide pin, adjustable devices carried by the frameand engaging the face of the connector at opposite ends of the supports,an adjusting screw carried by the support and engaging the face of theconnector for determining the position of the supporting framerelatively to the face of the connector, a tool-holder detachablyconnected to the supporting frame, means for adjusting the tool-holderin said frame and a truing tool rotatably mounted in the holder anddetachably connected therewith.

2. An apparatus for truing the ports of train pipe connectors,comprising a supporting frame having a plurality of rings, a tool-holdercomprising a plurality of sleeves adjustably connected with said rings,means for securing the supporting frame to a con nector head, devicesfor adjusting the position of the frame on the connector head, and atruing tool rotatably mounted in the toolholder and detachably connectedtherewith.

3. An apparatus for truing the ports of train pipe connectors,comprising a supporting frame formed with a series of rings, laterallyprojecting arms on the frame, an adjustalole screw carriedby one of thearms for determining the position of the supporting frame relatively tothe face of the connector, a clamp carried by one of the arms adapted tobe secured to a part of the connector, a pin carried by the other armadapted to be secured to another part of the connector, and a truingtool rotatably mounted in the supporting frame.

4. The combination with a train pipe con nector having a guide funneland a guide pin of a port truing apparatus, comprising a supportingframe, provided with laterally projecting arms, a pin carried by one ofthese arms adapted to be secured to the funnel, a clamp carried by theother arm adapted to be secured to the guide pin of the connector,devices for adjusting the frame relatively to the face of the connector,and a truing tool rotatably mounted in the supporting frame anddetachably connected therewith.

5. A truing apparatus for train pipe connectors, comprising a supportingframe, a tool-holder consistign of a series of sleeves adjustablyconnected with the supporting frame, devices for adjusting thesupporting frame on and firmly securing it to the connector head, and atruing tool comprising a sleeve detachably connected with the toolholderand a spindle carrying at one end a working head and at the opposite endprovided with a ball bearing which is interposed between the outer endof the spindle and the outer end of the sleeve and which ball bearinglimits the inward movement of the spindle during the process of truingthe ports.

6. A truing apparatus for train pipe connectors, comprising a supportingframe having a series of rings and laterally projecting arms, meanscarried by the arms for attaching the supporting frame to a connector,adjusting screws supported on the rings and adapted to engage the frontface of the 0011- nector, an adjustable screw carried by the frameadapted to abut against the end of the connector, and a truing toolrotatably mounted in the frame and detachably connected therewith.

7 A truing apparatus for train pipe connectors, comprising a supportingframe adapted to be adjusted on and secured to a connector, and a truingtool rotatably mounted in the frame comprising a spindle, a tool carriedthereby, a sleeve surrounding the spindle having laterally projectingarms, a bushing interposed between the sleeve and the spindle havinglaterally projecting arms, springs interposed between the arms, andscrews carrying nuts for adjusting the arms on the bushing toward andfrom the arms on the sleeve and for regulating the tension of thesprings.

In testimony, whereof I affix my signature at Altoona, Penna, this 3dday of January, 1911, in the presence of two witnesses.

PETER BEAHM.

Witnesses:

J os. Voo'r, GEO. BEAHM.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

